CN107035698B

CN107035698B - A kind of alternating temperature variable pressure pump

Info

Publication number: CN107035698B
Application number: CN201710411211.8A
Authority: CN
Inventors: 李晨天
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-05
Filing date: 2017-06-05
Publication date: 2019-10-18
Anticipated expiration: 2037-06-05
Also published as: CN107035698A

Abstract

The present invention is a kind of to change Liquid saturated vapor to form pressure gradient power to drive fluid directed movement and realize the mechanical device of fluid conveying using temperature change.As shown in Fig. 1, the present invention includes 1. centrifugal pump, 2. temperature reducing sleeve, and 3. alternating temperature chamber, 4. sucks check valve, 5. upper liquid level sensor, and 6. heating module, is 7. discharged check valve, 8. descends liquid level sensor, 9. controls the component parts such as assembly.

Description

A kind of alternating temperature variable pressure pump

Technical field

Change Liquid saturated vapor to form pressure gradient power to drive using temperature change the present invention relates to a kind of Fluid directed movement and the mechanical device for realizing fluid conveying.

Background technique

Many occasions are required to being related to the liquid (example of ultra-low viscosity in industrial and agricultural production, scientific research and daily life Such as liquefied petroleum gas, refrigerant, acetone) the case where being transferred to another container from a container, but due to these liquid Viscosity it is too low, pump chamber can not be made to form one layer of closed liquid film under the action of blade, make at present that all mechanical pump is not This class I liquid I can be used to pump, therefore when needing this class I liquid I being transferred to another container from a container, it can only Certain position will be increased to equipped with the container of this class I liquid I, then using gravity by liquid the pinnacled container from " pouring into " into the container for being in lower, not only efficiency is very low for the mode of this " pouring into ", and sometimes may result in very It is mostly dangerous.Simultaneously as the liquid of this kind of low viscosity or ultra-low viscosity can not be shifted or be conveyed with pump, lead to many objects It can only be shifted or be conveyed in the state of gas, it is clear that not only density is lower for the object of gaseous state, and needs more more Big container could store, and such case limits the application of this substance.Simultaneously as existing pump machine pump object when It waits, pumped object all has to pass through the impeller of pump, and therefore, the physical attribute of pumped object is easy to be destroyed, Such as when with the object of present pump pumping fruit juice one kind, when pulp in pumping through pump impeller when, the leaf that rapidly rotates Piece will damage the plant cellulose of pulp, cause the nutritive value of fruit juice greatly impaired.For this purpose, low glue can be pumped by designing one kind The new pump of the liquid of degree or ultra-low viscosity enhances improving the efficiency of industrial and agricultural production, expanding the application range of this substance The security performance of substance transfer all has important meaning.

Summary of the invention

The technical problem to be solved by the present invention is to overcome existing pump machine pump liquid viscosity bad adaptability, to containing particle Liquid or fluid cannot pump, have detrimental effect to pumping object, may cause the drawbacks such as safety accident when pumping object, provide One kind can pump all low viscosities or ultra-low viscosity liquid, containing particle-liquid or fluid, do not have any damage to pumped object Evil effect, is also not present the new pump of any security risk.The basic principle of the pump is to utilize three confined airs inside and outside pump chamber Between pressure height back and forth change generation forward or backwards driving force pumping liquid achieve the purpose that transferring objects, according to this original Reason, the present invention devise a set of unique physical structure and operation logic program, the chief component of the physical structure It include: 1. centrifugal pump；2. temperature reducing sleeve；3. alternating temperature chamber；4. heating module；5. controlling assembly；And some connection accessories etc..It is above-mentioned each Chief component connects and composes an organic whole as shown in Figure 1, and the physical structure of composition is patrolled according to the work of design Collect operation, groundwork logic are as follows: cryogenic liquid is transported in temperature reducing sleeve by work beginning, centrifugal pump, and temperature reducing sleeve injection is low After warm coolant liquid, alternating temperature chamber temperature decline inside is covered, with the lasting reduction of alternating temperature chamber temperature, wherein the saturation of liquid is steamed Air pressure declines rapidly and intracavitary pressure is caused to reduce, and the suction side one-way cock connecting at this time with alternating temperature chamber one end is due to suction side Pressure is greater than alternating temperature chamber internal pressure and opens, and working medium enters alternating temperature chamber under the driving of pressure gradient power, with working medium into Enter, when the intracavitary upper liquid level sensor of alternating temperature detects intracavitary hydraulically full, centrifugal pump stops working, and coolant liquid exists in coolant jacket Heat insulation trough is flowed back to via centrifugal pump impeller gap under gravity, while the intracavitary heating module set of alternating temperature starts to add to working medium Heat, saturated vapour pressure rises rapidly after working medium in pump chamber is heated, according to pascal's principle, is in same closed container (alternating temperature Chamber) in liquid pressure it is also synchronous rise, when alternating temperature intracavity liquid pressure is greater than working medium row connect with discharge check valve valve When the pressure of outlet, discharge check valve is opened, and the intracavitary liquid of alternating temperature flows to outlet side and through outlet side pressure gradient power Working medium outlet side container is injected, the intracavitary liquid level of alternating temperature declines therewith, and liquid level sensor detects the intracavitary working medium quilt of alternating temperature instantly When emptying, heating module stops heating, meanwhile, centrifugal pump restarting, coolant liquid is again introduced into temperature reducing sleeve, the intracavitary temperature of alternating temperature Degree decline, drop of pressure, new working medium are inhaled into alternating temperature chamber, and next pumping circulation process starts, and so in cycles, reaches company The purpose of continuous pumping working medium.

As shown in Fig. 1, alternating temperature variable pressure pump of the present invention is: the alternating temperature variable pressure pump include 1. centrifugal pump, 2. cool down 7. set, 3. alternating temperature chamber, 4. sucking check valve, 5. upper liquid level sensor, 6. heating module are discharged check valve, 8. descend level sensing 9. device controls the component parts such as assembly.

9. the control assembly issues work order, 1. the centrifugal pump starts and 2. injects certain temperature to the temperature reducing sleeve The coolant liquid of degree, with the temperature reducing sleeve 2. in coolant liquid injection, be placed in the temperature reducing sleeve 2. in the alternating temperature chamber 3. in Temperature decline, cavity temperature pressure decreases, at this point, the sucking check valve is 4. under the action of liquid sucking end pressure It is opened, the working medium for needing to pump is toward the alternating temperature chamber 3. interior injection, when the working medium of injection reaches 3. interior mounted in the alternating temperature chamber Upper liquid level sensor position 5. when, 1. the centrifugal pump stops working, the coolant liquid in temperature reducing sleeve will be along at this time Flow out temperature reducing sleeve in the gap of centrifugal pump impeller, while 3. 6. the interior heating module starts heating to the alternating temperature chamber, and alternating temperature is intracavitary Temperature of Working increase, the alternating temperature chamber 3. in saturated vapour pressure rise with it, according to pascal's principle, be in same close Close that liquid pressure in container (alternating temperature chamber) is also synchronous to be risen, when the alternating temperature chamber 3. in liquid pressure be greater than outlet side pressure When, 7. the discharge check valve is opened, at this time the alternating temperature chamber 3. in liquid spontaneous flow to outlet side, institute under pressure push State alternating temperature chamber 3. in liquid level decline therewith, when be placed in the alternating temperature chamber 3. in the lower liquid level sensor 8. detect it is described Alternating temperature chamber 3. in working medium emptying when, 6. the heating module stops heating, meanwhile, 1. the centrifugal pump restarts, make cold But 2. liquid is again introduced into the temperature reducing sleeve, the alternating temperature chamber 3. in temperature decline again, drop of pressure, the sucking check valve is 4. It is opened again, 3. new working medium sucks the alternating temperature chamber again, next pumping circulation process starts, and so in cycles, reaches To the purpose of uninterrupted pumping working medium.

1. the centrifugal pump is a centrifugal pump to pump coolant liquid, in the alternating temperature variable pressure pump, the centrifugation 1. pump is placed in the cooling liquid bath equipped with cryogenic liquid, and be 2. connected by a closed conduit with the temperature reducing sleeve, described Alternating temperature variable pressure pump needs to reduce temperature, and when sucking liquid, 1. the centrifugal pump is extracted from cooling liquid bath described in coolant liquid injection Temperature reducing sleeve is 2. interior.

2. the temperature reducing sleeve is the container of a set type, the coolant liquid being pumped into for accommodating centrifugal pump, and completes coolant liquid With the heat exchange of alternating temperature chamber 3., 2. bottom is connected the temperature reducing sleeve with the centrifugal pump, and upper portion side wall has one outlet connection cold But the conduit of liquid bath recycles the coolant liquid entered.

The alternating temperature chamber be 3. placed in the temperature reducing sleeve 2. in, 4. upper end tube nozzle is connect with the sucking check valve, lower end pipe 7. mouth is connect with the discharge check valve.

4. 3. one end is connect upper end the sucking check valve with the alternating temperature chamber, and 3. connecting pin is sucking with the alternating temperature chamber Direction, the other end are connect with working medium container nozzle, the flow direction for controlled medium.

5. the upper liquid level sensor is placed in the alternating temperature chamber 3. interior upper end, whether the working medium for detecting sucking has filled Full pumping chamber.

6. the heating module is a heat generating device, be placed in the cooling chamber 3. lower part, is used for the alternating temperature chamber 3. Interior working medium heating.

7. 3. lower channel is connect the discharge check valve with the alternating temperature chamber for one end, the other end and outlet side container conduit Connection, it is discharge direction that direction is connect with outlet side container conduit, can only enter outlet side by alternating temperature chamber for controlled medium.

The lower liquid level sensor be 8. placed in the alternating temperature chamber 3. in, for detect the alternating temperature chamber 3. in working medium whether It is drained.

9. the control assembly is the control device for controlling the alternating temperature variable pressure pump working condition, the centrifugal pump 1., institute State heating module 6., the upper liquid level sensor 5. 8. 9. connect with the control assembly with the lower liquid level sensor, to 9. the control assembly reports detection or collected information and receives to work from the instruction of the control assembly 9..

Detailed description of the invention

Fig. 1 alternating temperature variable pressure pump structure principle chart: 1. 2. 3. 4. 5. alternating temperature chamber sucks check valve to temperature reducing sleeve to centrifugal pump 6. 7. heating module is discharged check valve liquid level sensor is 8. descended 9. to control assembly Fig. 2 alternating temperature variable pressure pump upper liquid level sensor Implementation example figure: 1. 2. 3. 4. alternating temperature chamber sucks check valve 5. upper liquid level sensor 6. heating module to temperature reducing sleeve to centrifugal pump 7. 8. discharge check valve descends liquid level sensor 9. to control assembly and 10. cools down liquid bath.

Specific embodiment

Embodiment: as shown in Fig. 2, 1. centrifugal pump described in alternating temperature variable pressure pump described in the present embodiment is placed in one has one The cooling liquid bath of constant volumeInterior, optimally, this cooling liquid bath generally uses expanded polystyrene (EPS) heat preservation tank, volume it is big It is small the centrifugal pump generally can satisfy with the coolant liquid that can be filled 1. extract coolant liquid be advisable, while the cooling liquid bathHave The nozzle that can be connect with cooling device facilitates coolant liquid to cool down, 1. the centrifugal pump passes through pipeline and 2. connect with the temperature reducing sleeve, Optimally, 2. the temperature reducing sleeve can select the plastic materials such as PTFE, PP-R to make, and main body generally uses cylinder, the drop Warm set upper side side wall has one outlet, and outlet has a conduit to protrude into the cooling liquid bath, imports the centrifugal pump 1. cold But liquid can be recycled back to the cooling liquid bathIt is interior, the alternating temperature chamber be 3. placed in the temperature reducing sleeve 2. in, optimally, the change 3. warm chamber generally makes of red copper, the general cylinder for selecting both ends to have domed bottom, the alternating temperature chamber 3. outer wall with it is described Temperature reducing sleeve 2. the distance between inner wall substantially 5mm or so, 3. upper and lower part respectively has a nozzle difference saturating to the alternating temperature chamber Crossing the temperature reducing sleeve, 2. upper cover and lower cover extend outward, upper orifice extend the temperature reducing sleeve 2. after upper cover with the sucking 4. check valve connects, the sucking direction of unidirectional connection valve towards the alternating temperature chamber 3., the check valve 4. have an interface with wait infuse Enter the container joint connection of working medium, 3. lower nozzle extension is pierced by the temperature reducing sleeve 2. after lower cover, with the row to the alternating temperature chamber Out 7. check valve connects, and the discharge direction of the discharge check valve 7. is connect with the container conduit of working medium to be received, optimally, institute 4. 7. stating sucking check valve can be selected bore spring appropriate-disc-type check valve, the heating with the discharge check valve 6. module is placed in the cooling chamber 3. interior lower end, 9. connect and communicate with each other with the control assembly, 9. the heating module needs 9. the power supply wanted is supplied by the control assembly, optimally, the heating module generally uses voltage for the closed type of AC220V Heating module, power can be selected according to the setting power of the alternating temperature variable pressure pump, 5. the upper liquid level sensor is placed in described Alternating temperature chamber 3. upper inside wall, 8. the lower liquid level sensor, which is set, is placed in the alternating temperature chamber 3. inner wall lower, respectively with the control 9. assembly is connected and can be communicated with each other, optimally, 5. 8. the upper liquid level sensor can be selected with the lower liquid level sensor Capacitance level transducer, the control assembly be 9. one can to the centrifugal pump 1., the heating module 6., it is described on 5. 8. power adapter and completion are in communication with each other liquid level sensor with the lower liquid level sensor, are stored and are handled the programmable of data Control device is optimally, general using the programmable controller for being based on general man-machine interface (GHMI), optimally, whole device Generally powered using AC220V mains supply.

Claims

1. alternating temperature variable pressure pump, it is characterised in that: it includes a centrifugal pump (1), temperature reducing sleeve (2), alternating temperature chamber (3), sucks unidirectionally Valve (4), upper liquid level sensor (5), heating module (6), discharge check valve (7), lower liquid level sensor (8) and a control assembly (9), the control assembly (9) issues work order, and centrifugal pump (1) starting simultaneously injects certain temperature to the temperature reducing sleeve (2) The freezing liquid of degree, with the injection of the temperature reducing sleeve (2) interior freezing liquid, the alternating temperature chamber that is wrapped in the temperature reducing sleeve (2) (3) the temperature decline in, alternating temperature chamber (3) the cavity temperature pressure decreases, until the alternating temperature chamber (3) interior pressure is lower than work When the pressure of matter suction side, the sucking check valve (4) is opened under the action of pressure gradient power, and the working medium for needing to pump is toward institute Injection in alternating temperature chamber (3) is stated, when the working medium of injection reaches the position of the upper liquid level sensor (5) in the alternating temperature chamber (3) When, the upper liquid level sensor (5) sends the signal that the alternating temperature chamber (3) has filled working medium to control assembly (9), described Control assembly (9) Xiang Suoshu centrifugal pump (1) issues the instruction to stop working, and the centrifugal pump (1) stops working, at this time temperature reducing sleeve Pipeline of the interior freezing liquid under the effect of gravity along the centrifugal pump (1) Xiang Suoshu temperature reducing sleeve (2) injection freezing liquid flows into institute It states in centrifugal pump (1), and is flowed out by the impeller clearance of the centrifugal pump (1), while the control assembly (9) will be to the change The heating module (6) in warm chamber (3) supplies power supply, and heating module (6) starting is heated, in the alternating temperature chamber (3) Temperature of Working increases, and the saturated vapour pressure in the alternating temperature chamber (3) rises with it, and according to pascal's principle, is in same closed Container, i.e., liquid pressure in the described alternating temperature chamber (3) is also synchronous to be risen, when the liquid pressure in the alternating temperature chamber (3) is greater than row When outlet pressure, the discharge check valve (7) is opened, driving of the working medium in the alternating temperature chamber (3) in pressure gradient power at this time Under the spontaneous outlet side injection working medium that flows to receive container, the liquid level in the alternating temperature chamber (3) declines therewith, when being placed in the alternating temperature The lower liquid level sensor (8) in chamber (3) detects when alternating temperature chamber (3) the interior working medium empties to the control assembly (9) The signal that the alternating temperature chamber (3) has been drained off is issued, control assembly (9) receives what above-mentioned alternating temperature chamber (3) had been drained off The instruction for stopping heating being issued after signal to the heating module (6), the heating module (6) stops heating, meanwhile, the control Assembly (9) Xiang Suoshu centrifugal pump (1) processed issues enabled instruction, and centrifugal pump (1) restarting makes coolant liquid be again introduced into institute It states temperature reducing sleeve (2), the interior temperature of the alternating temperature chamber (3) declines again, pressure also declines, and the sucking check valve (4) is beaten again It opens, new working medium is inhaled into the alternating temperature chamber (3), and next pumping circulation process starts, and so in cycles, reaches uninterrupted pumping The purpose of working medium, the control assembly (9) and the centrifugal pump (1), the upper liquid level sensor (5), the heating module (6) It is separately connected with the lower liquid level sensor (8), power supply is provided and communicates with each other, the control assembly (9) is simultaneously to from institute State the data of centrifugal pump (1), the upper liquid level sensor (5), the heating module (6) and the lower liquid level sensor (8) into Row centralized processing and analysis, and according to the work-based logic of the alternating temperature variable pressure pump need respectively to the centrifugal pump (1), it is described on Liquid level sensor (5), the heating module (6) and the lower liquid level sensor (8) send instruction.

2. alternating temperature variable pressure pump according to claim 1, it is characterised in that: the centrifugal pump (1), which is one, will freeze Liquid is injected into the centrifugal pump in the temperature reducing sleeve (2), which is any centrifugal pump that can complete pumping freezing liquid.

3. alternating temperature variable pressure pump according to claim 1 or claim 2, it is characterised in that: the temperature reducing sleeve (2) is that a lower end has one Pipe is connect with the centrifugal pump (1), and upper end side wall has one outlet pipeline for completing the circulation of coolant liquid, and inside is disposable The closed container of the alternating temperature chamber (3).

4. alternating temperature variable pressure pump according to claim 1 or claim 2, it is characterised in that the alternating temperature chamber (3) be one be placed in it is described In temperature reducing sleeve (2), upper end has the pipeline stretching temperature reducing sleeve upper cover to extend outward, and lower end has a pipeline to stretch out the drop The container for the opposing seal that temperature set (2) lower cover extends outward.

5. alternating temperature variable pressure pump according to claim 1 or claim 2, it is characterised in that: the sucking check valve (4) be an one end with Alternating temperature chamber (3) connection, the check valve that the other end is connect with the container of working medium to be implanted, which, which is one, has unidirectionally The size of any valve of valve performance, valve is selected according to the flow design of the alternating temperature variable pressure pump.

6. alternating temperature variable pressure pump according to claim 1 or claim 2, it is characterised in that: the upper liquid level sensor (5) is one and is mounted in Alternating temperature chamber (3) top can detecte the interior working medium liquid level of the alternating temperature chamber (3) and send that information to the control assembly (9) liquid level sensor, the sensor be it is any have detection and liquid level detection and to the control assembly (9) transmission relevant information Liquid level sensor.

7. alternating temperature variable pressure pump according to claim 1 or claim 2, it is characterised in that: the heating module (6) be one be placed in it is described Alternating temperature chamber (3) lower end connect with the control assembly (9) and obtains working power, is sent to it information or receives its work sent Make the heating module instructed.

8. alternating temperature variable pressure pump according to claim 1 or claim 2, it is characterised in that: the lower liquid level sensor (8) is one and is mounted in Alternating temperature chamber (3) lower part can detecte the interior working medium liquid level of the alternating temperature chamber (3) and send that information to the control assembly (9) liquid level sensor, the sensor be it is any have detection and liquid level detection and to the control assembly (9) transmission relevant information Liquid level sensor.

9. alternating temperature variable pressure pump according to claim 1 or claim 2, it is characterised in that: the discharge check valve (7) be an one end with Alternating temperature chamber (3) the lower end nozzle connection, the other end receive the valve with non-return valve function that container nozzle is connect with working medium, The check valve is any valve with unidirectional valve performance, and the size of valve can be set according to the flow of the alternating temperature variable pressure pump Meter is selected.

10. alternating temperature variable pressure pump according to claim 1 or claim 2, it is characterised in that: the control assembly (9), which is one, has number According to reception, storage, processing function programmable control unit, receive come from the centrifugal pump (1), the upper liquid level sensor (5), the information of the lower liquid level sensor (8) and the heating module (6) and to they issue related works instruction, while to They provide corresponding working power.